Problem Solving (PS) | Re: The (x, y) coordinates of points P and Q are (-2, 9) and (-7, -3), res

30-60-90
x-x sq. root3-2x
This is the simplest way to find a measurement of a leg. then the formula of a equilateral triangle can be applied.

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Statistics : Posted by Mehadihasanshawon • on 18 Feb 2012, 16:44 • Replies 14 • Views 22088

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